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Updated: Jun 16, 2026

Next Generation Sequencing for the Detection of Actionable Mutations in Solid and Liquid Tumors
Published on: September 20, 2016
Abdominal undifferentiated small round cell tumor with unique translocation (X;19)(q13;q13.3)
Jason T Yustein1, Surya Rednam, Alison A Bertuch
1Department of Pediatrics, Texas Children's Cancer Center, Baylor College of Medicine, Houston, Texas, USA. yustein@bcm.edu
Abstract:
We describe a male with a large abdominal mass, most likely originating from the liver, with capsule rupture and tumor dissemination into the abdominal cavity. Adherence of the tumor to the diaphragm and lower right colon also were noted. A comprehensive evaluation of the mass revealed no tumor-defining histopathologic, immunocytochemical, ultrastructural, cytogenetic, or translocation features. The malignant tumor was found to have a novel translocation (X;19)(q13;13.3), which has not been reported in small round cell tumors of childhood or adults. The final diagnosis rendered was an undifferentiated small round cell tumor of uncertain cell of origin.
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